﻿using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
using DBUtility;
using MySql.Data.MySqlClient;

namespace DAL
{
    public class DArea
    {
        #region  Method

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public  int GetMaxId()
		{
		return DbHelperMySQL.GetMaxID("id", "tarea"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
        public  bool Exists(int id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from tarea");
			strSql.Append(" where id=@id");
			MySqlParameter[] parameters = {
					new MySqlParameter("@id", MySqlDbType.Int32)
};
			parameters[0].Value = id;

			return DbHelperMySQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
        public  bool Add(Model.AreaInfo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into tarea(");
			strSql.Append("AreaName,FAreaId,PreStr,Longitude,Latitude)");
			strSql.Append(" values (");
			strSql.Append("@AreaName,@FAreaId,@PreStr,@Longitude,@Latitude)");
			MySqlParameter[] parameters = {
					new MySqlParameter("@AreaName", MySqlDbType.VarChar,50),
					new MySqlParameter("@FAreaId", MySqlDbType.Int32,10),
					new MySqlParameter("@PreStr", MySqlDbType.VarChar,200),
					new MySqlParameter("@Longitude", MySqlDbType.Double),
					new MySqlParameter("@Latitude", MySqlDbType.Double)};
			parameters[0].Value = model.AreaName;
			parameters[1].Value = model.FAreaId;
			parameters[2].Value = model.PreStr;
			parameters[3].Value = model.Longitude;
			parameters[4].Value = model.Latitude;

			int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
        public  bool Update(Model.AreaInfo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update tarea set ");
			strSql.Append("AreaName=@AreaName,");
			strSql.Append("FAreaId=@FAreaId,");
			strSql.Append("PreStr=@PreStr,");
			strSql.Append("Longitude=@Longitude,");
			strSql.Append("Latitude=@Latitude");
			strSql.Append(" where id=@id");
			MySqlParameter[] parameters = {
					new MySqlParameter("@AreaName", MySqlDbType.VarChar,50),
					new MySqlParameter("@FAreaId", MySqlDbType.Int32,10),
					new MySqlParameter("@PreStr", MySqlDbType.VarChar,200),
					new MySqlParameter("@Longitude", MySqlDbType.Double),
					new MySqlParameter("@Latitude", MySqlDbType.Double),
					new MySqlParameter("@id", MySqlDbType.Int32,10)};
			parameters[0].Value = model.AreaName;
			parameters[1].Value = model.FAreaId;
			parameters[2].Value = model.PreStr;
			parameters[3].Value = model.Longitude;
			parameters[4].Value = model.Latitude;
			parameters[5].Value = model.id;

			int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
        public  bool Delete(int id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from tarea ");
			strSql.Append(" where id=@id");
			MySqlParameter[] parameters = {
					new MySqlParameter("@id", MySqlDbType.Int32)
};
			parameters[0].Value = id;

			int rows=DbHelperMySQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
        public  bool DeleteList(string idlist)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from tarea ");
			strSql.Append(" where id in ("+idlist + ")  ");
			int rows=DbHelperMySQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
        public  Model.AreaInfo GetModel(int id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select id,AreaName,FAreaId,PreStr,Longitude,Latitude from tarea ");
			strSql.Append(" where id=@id");
			MySqlParameter[] parameters = {
					new MySqlParameter("@id", MySqlDbType.Int32)
};
			parameters[0].Value = id;

			Model.AreaInfo model=new Model.AreaInfo();
			DataSet ds=DbHelperMySQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				if(ds.Tables[0].Rows[0]["id"]!=null && ds.Tables[0].Rows[0]["id"].ToString()!="")
				{
					model.id=int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
				}
				if(ds.Tables[0].Rows[0]["AreaName"]!=null && ds.Tables[0].Rows[0]["AreaName"].ToString()!="")
				{
					model.AreaName=ds.Tables[0].Rows[0]["AreaName"].ToString();
				}
				if(ds.Tables[0].Rows[0]["FAreaId"]!=null && ds.Tables[0].Rows[0]["FAreaId"].ToString()!="")
				{
					model.FAreaId=int.Parse(ds.Tables[0].Rows[0]["FAreaId"].ToString());
				}
				if(ds.Tables[0].Rows[0]["PreStr"]!=null && ds.Tables[0].Rows[0]["PreStr"].ToString()!="")
				{
					model.PreStr=ds.Tables[0].Rows[0]["PreStr"].ToString();
				}
				if(ds.Tables[0].Rows[0]["Longitude"]!=null && ds.Tables[0].Rows[0]["Longitude"].ToString()!="")
				{
					//model.Longitude=ds.Tables[0].Rows[0]["Longitude"].ToString();
				}
				if(ds.Tables[0].Rows[0]["Latitude"]!=null && ds.Tables[0].Rows[0]["Latitude"].ToString()!="")
				{
					//model.Latitude=ds.Tables[0].Rows[0]["Latitude"].ToString();
				}
				return model;
			}
			else
			{
				return null;
			}
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
        public  DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select id,AreaName,FAreaId,PreStr,Longitude,Latitude ");
			strSql.Append(" FROM tarea ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperMySQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
        public  int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM tarea ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
        public  DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
				strSql.Append("order by T.id desc");
			}
			strSql.Append(")AS Row, T.*  from tarea T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperMySQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			MySqlParameter[] parameters = {
					new MySqlParameter("@tblName", MySqlDbType.VarChar, 255),
					new MySqlParameter("@fldName", MySqlDbType.VarChar, 255),
					new MySqlParameter("@PageSize", MySqlDbType.Int32),
					new MySqlParameter("@PageIndex", MySqlDbType.Int32),
					new MySqlParameter("@IsReCount", MySqlDbType.Bit),
					new MySqlParameter("@OrderType", MySqlDbType.Bit),
					new MySqlParameter("@strWhere", MySqlDbType.VarChar,1000),
					};
			parameters[0].Value = "tarea";
			parameters[1].Value = "id";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperMySQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  Method
    }
}
